Yelchin, who also acted in "Like Crazy" and "Alpha Dog," died outside his home in Los Angeles, according to law enforcement.

Yelchin stepped out of his car in the driveway of his Studio City home at around 1:10 a.m. PT when the car slid backwards and pinned him against a brick pillar and a security fence, causing trauma that led to his death, said Jennifer Houser with the Los Angeles Police Department.

"The victim was on his way to meet his friends for a rehearsal and when he didn't show up, his friends went to his house where they found him deceased by his car," Houser told CNN. "It appears that he momentarily left his car, leaving it in the driveway. He was behind the vehicle when it rolled backward and pinned him to the brick pillar causing the trauma that led to his death."

Houser says Yelchin's family was notified by the friends that found him. She did not know whether the car was running when he was found.